Home / 8,315,947.60-12,473,921.40-7,812,062.80

Finding the Fourth Proportional to 8,315,947.60, 12,473,921.40 and 7,812,062.80

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Solution

The fourth proportional to 8,315,947.60, 12,473,921.40 and 7,812,062.80 is: 11,718,094.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315,947.60 : 12,473,921.40 = 7,812,062.80 : x
  2. Step 2: Convert to fraction form
    8,315,947.60/12,473,921.40 = 7,812,062.80/x
  3. Step 3: Cross multiply
    8,315,947.60x = 12,473,921.40 × 7,812,062.80
  4. Step 4: Simplify right side
    8,315,947.60x = 97,447,057,339,063.92
  5. Step 5: Solve for x
    x = 97,447,057,339,063.92/8,315,947.60
  6. Step 6: Final answer
    x = 11,718,094.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.